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(11)

EP 2 926 589 A1

(12)

(43) Date of publication: 07.10.2015 Bulletin 2015/41 (21) Application number: 12799664.3 (22) Date of filing: 28.11.2012

(51) International Patent Classification (IPC):  H04W 28/02(2009.01) H04W 36/22(2009.01) H04W 28/08(2009.01) (86) International application number: PCT/SE2012/051318 (87) International publication number: WO 2014/084764 (05.06.2014 Gazette 2014/23)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME (71) Applicant: Telefonaktiebolaget LM Ericsson (PUBL) 164 83 Stockholm (SE)	(72) Inventors: ERIKSSON, Per-Erik S-116 37 Stockholm (SE) BERG, Miguel S-194 67 Upplands Väsby (SE) LU, Chenguang S-191 34 Sollentuna (SE) TROJER, Elmar S-187 37 Täby (SE) (74) Representative: Valea AB  Box 7086 103 87 Stockholm 103 87 Stockholm (SE)